The mobile phone shows that the sIm card is inserted, but there is no signal and no service.

To sum up, there are three possible impacts: environmental problems, mobile phone problems and mobile phone card problems. Environmental problems try to change an open environment. It is recommended to reset or repair the mobile phone. Call customer service about the phone card problem. Is the status of check card faulty? This problem can be eliminated in the following cases:

I. Environmental issues:

1. No matter in remote places, mountainous areas or high latitudes, it has a great influence on the signal. It is recommended to use it in another environment. If not, change the mobile phone card of other operators;

2. Whether it is used in an environment with signal shielding, like an elevator, it is recommended to use it in another environment.

Second, the mobile phone problem:

1. Some mobile phone operators are limited. If the early telecom mobile phone restricted the use of telecom cards, check whether the phone parameters can support your mobile phone card type;

2. Change another mobile phone card to test whether the function of the mobile phone is intact, or change another mobile phone to test. If there is something wrong with the phone, please reset or repair it.

Third, the mobile phone card problem:

1. Your mobile phone card is new. Without real-name authentication and network registration, it cannot be used normally. Please call customer service to activate your mobile phone card.

2. Someone else's operation or misoperation stopped your mobile phone number. Please call customer service to re-enable the mobile phone function.

3. Your mobile phone has been in arrears for a long time, and the platform will stop processing your mobile phone number. Please call customer service to pay the arrears and reopen the mobile phone function.

Extended data:

Mobile phone downtime means that users can't use all services such as calls, text messages and the Internet. There are generally two kinds of downtime. One is that the user actively applies to the operator to suspend the mobile phone service by reporting the loss or stopping the phone number. The other is that the communication operator suspends the user's mobile phone service when the balance of the user's mobile phone account is zero or the given credit line has been exhausted, and cancels the number if it is stopped for more than 3 months (except for users who have stopped to protect the number).

References:

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